19828072

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1621}}^1$

素因数の和:1777

約数の個数: 32

約数和(自身を含む): 40874400

約数和(自身を除く): 21046328

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 139, 278, 556, 1112, 1529, 1621, 3058, 3242, 6116, 6484, 12232, 12968, 17831, 35662, 71324, 142648, 225319, 450638, 901276, 1802552, 2478509, 4957018, 9914036, 19828072]

約数ペア:

[(1, 19828072), (2, 9914036), (4, 4957018), (8, 2478509), (11, 1802552), (22, 901276), (44, 450638), (88, 225319), (139, 142648), (278, 71324), (556, 35662), (1112, 17831), (1529, 12968), (1621, 12232), (3058, 6484), (3242, 6116)]